Mypal/dom/webidl/ResizeObserver.webidl

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/* -*- Mode: IDL; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this file,
* You can obtain one at http://mozilla.org/MPL/2.0/.
*
* The origin of this IDL file is
* https://wicg.github.io/ResizeObserver/
*/
[Constructor(ResizeObserverCallback callback),
Exposed=Window,
Pref="layout.css.resizeobserver.enabled"]
interface ResizeObserver {
[Throws]
void observe(Element? target);
[Throws]
void unobserve(Element? target);
void disconnect();
};
callback ResizeObserverCallback = void (sequence<ResizeObserverEntry> entries, ResizeObserver observer);
[Constructor(Element? target),
ChromeOnly,
Pref="layout.css.resizeobserver.enabled"]
interface ResizeObserverEntry {
readonly attribute Element target;
readonly attribute DOMRectReadOnly? contentRect;
};
[Constructor(Element? target),
ChromeOnly,
Pref="layout.css.resizeobserver.enabled"]
interface ResizeObservation {
readonly attribute Element target;
readonly attribute long broadcastWidth;
readonly attribute long broadcastHeight;
boolean isActive();
};